Textile oil



Patented Aug. 16, 1932 UNITED STATES PATENT OFFICE.

' ANSEL I. KINNEY, OF CHICAGO, ILLINOIS, ASSIGNOB '10 STANDARD OILCOMPANY )1 WRITING, INDIANA, A GOBPQRATION OF INDIANA Ho Drawing.

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The present invention relates to improvements in textile oils, and moreparticularly to improvements in oils intended for the preparation ofrayons for use in knitting ma- I may incorporate, if desired, from 5 to15% of a fatty oil, for example, lard oil. A preferred mixture preparedin accordance with this invention may contain about 70% of 55 sec.Saybolt (100 F.) oil; 15% of oleic acid and 15% of sodium soaps ofsulfonic acids derived as above set forth. Another suitablemixtureembodyingthe present invention is one containing 82% of mineral oilhaving a viscosity of 55 sec. Saybolt (100 F.); 3% of oleic acid; 10% oflard oil and 5% of sodium soaps of sulfonic compounds. As is seen fromthese examples, in various formulas the proportions may be widely variedand the lard oil may be employed oromitted, as desired.

In actual practice, metathesis occurs between the alkali sulfonate soapsand the oleic acid, resulting in the formation of a small amount ofalkali oleate and, of course, a small amount of free sulfonic acid.

In using the oil of the present invention,

5 a it is, if necessary, diluted with a light oil to a viscosity below70 seconds Saybolt at 100 F. (for example cleaners naphtha or strawevaporates from the treated rayon.

In preparing rayon for use in knitting ma-' chines, andparticularly'those of the high capillary action.

Application filed January 3, 1927. Serial No. 158,884.

speed type having rotary moving parts, it is found that the mostsatisfactory oil can be prepared by employing with the mineral .oil thealkali metal soaps of petroleum sulfonic acids and oleic acid inapproximately equal proportions, their combined amount being from to40%of the entire oil.

, 'lhe rayon is treated with the oil, suitably in sk'ein form. Thus, theskeins' ofrayon may be immersed in a bath .of the above oil andsubsequently centrifuged to remove excess oil, or the oil may besprinkled upon the 'skeins and distributed therethrough by As a resultof the treatment of the rayon with the above oil, the fibers aresoftened without substantial loss in tensile strength. fraying of thefibers is prevented, and the needles of the knittingimachines upon whichthe rayon is used are'effectively lubricated and their wear reduced.Furthermore, the oil material may be readily washed from the rayonarticles produced, leaving itin suitable condition for the applicationof such dyes as may be desired. It is found that an oil of the characterdescribed is particularly 'eflective, because it does not to anysubstantial degree weaken the rayons which are particularly susceptibleto hydrolysis, such as those derived by the acetate process.

This application constitutes a continuation in part of my applicationfiled November 16,

1925, Serial'No. 69,505.

I claim:

1. A rayon-oiling composition comprising low viscosity lubricating oil,oleic acid and alkali metal soaps of oil soluble .sulfonic acids derivedby the treatment of mineral oils with strong sulfuric acid.

2. An oil for the treatment of rayon for use in textile operationscomprisin '"from 50 to of a low viscosity minera oil, 1 to 15% of oleicacid,'1 to 50% of an alkali'metal soap of an oil soluble sulfonic acidderived from the treatment of'oils with sulfuric acid.

3. An oil for the treatment of rayon for use in textile operationsconsisting of 82% of low viscosity mineral'oil, 3% of oleic acid, 10%..of lard oil and 5% of sodium soaps of oil solublesulfonic acids derivedfrom the treatment of mineral oils with strong sulfuric acid.

4. An oiling composition particularly suitable for rayontreatment.cdmprising a low viscosity mineral oil, and approximatelyequal amounts. of oleic acid and alkali metal soaps of oil solublemineral oil sulfonic acids, the combined amount of said oleic acid andsaid soap being from 20 to 40% of the entirecompos'itionof soaps, oleicacid and oil.

5. An oil particularlysuited-for the treatment of rayon for use intextile operations consisting of about 70% oflow viscosity mineral oil,and about .eachof. oleic acid 15 and sodium soaps of oil soluble mineraloil sulfonicacids.

6. A rayon oiling composition comprising low viscosity minerallubricating oil, oleic acid, fatty oil and alkali metal soaps ofsulionic oil soluble acids derived by the treatmefit of mineral oilswith strong sulfuric aci 7. The method of fabricating ra on cloth whichcomprises treating rayon fi res with a composition of low viscositylubricati-u oil, oleic acid, and alkali metal soaps of oi solublesulphonic acids derived by the treatment of mineral oils with strongsulphuric acid, and operating upon said treated fibres X ithmachines forfabricating clot-h there- 8. The method of fabricating knitted rayoncloth which comprises treating rayon fibres with a composition of lowviscosity lubricating oil, oleic acid, and alkali metal soaps of oilsoluble sulphonic acids derived from the treatment of mineral oils withstrong sulphuric acid, and operating upon said treated fibres 'with theneedles of a 40' knitting machine.

9. The method of fabricating rayon cloth which comprises treating rayonfibres with a composition of low viscosity purified mineral oil andalkali metal soaps of oil soluble 4 sulphonic acids derived by thetreatment of mineral oils with strong sulphuric acid, and operating uponsaid treated fibres with machines for fabricating cloth therefrom.

10. The composition of claim l wherein the lubricating oil is a purifiedmineral oil havin a Saybolt viscosity of about secon at F. Y

' ANSEL M..KINNEY.

